/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/AbilitySystemComponent.h
Unregister previously added events
bool UnregisterGameplayTagEvent ( [FDelegateHandle](API\Runtime\Core\Delegates\FDelegateHandle) DelegateHandle, [FGameplayTag](API\Runtime\GameplayTags\FGameplayTag) Tag, [EGameplayTagEventType::Type](API\Plugins\GameplayAbilities\EGameplayTagEventType__Type) EventType )